CN102303641A - Disc-type servomotor direct-driving device suitable for self-adaptable power-assisted steering of automobile - Google Patents
Disc-type servomotor direct-driving device suitable for self-adaptable power-assisted steering of automobile Download PDFInfo
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- CN102303641A CN102303641A CN 201110157734 CN201110157734A CN102303641A CN 102303641 A CN102303641 A CN 102303641A CN 201110157734 CN201110157734 CN 201110157734 CN 201110157734 A CN201110157734 A CN 201110157734A CN 102303641 A CN102303641 A CN 102303641A
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Abstract
The invention relates to a disc-type servomotor direct-driving device suitable for self-adaptable power-assisted steering of an automobile. The disc-type servomotor direct-driving device comprises a rack shaft, wherein the right end of the rack shaft is connected with the other end of a right horizontal pull rod through a first power-assisting motor connecting mechanism or a second power-assisting motor connecting mechanism; a torque sensor installed on a steering column is connected with a disc-type motor of the first power-assisting motor connecting mechanism or the second power-assisting motor connecting mechanism through an electronic control unit; and power provided by the disc-type motor for steering is adopted to reduce the hand power of an operator for steering, and when the operator rotates a steering wheel leftward or rightward, the first power-assisting motor connecting mechanism or the second power-assisting motor connecting mechanism provides the rack shaft and the right horizontal pull rod with power for leftward movement or rightward movement, so as to enable s left steering wheel and a right steering wheel to rotate. The disc-type servomotor direct-driving device provided by the invention has the advantages of simple mechanism, small occupied space and quick response speed.
Description
Technical field
The present invention relates to the automobile steering system field, relate in particular to a kind of power-steering disc type servomotor of automotive self-adaptive direct driving device that is applicable to.
Background technology
Electric boosting steering system (EPS) is on the basis of traditional mechanical steering swivel system; According to the dtc signal and the vehicle speed signal of automobile that act on the bearing circle; Make motor produce the auxiliary force of corresponding size and Orientation through electronic control package, the assistance chaufeur carries out steering operation and obtains the Fu of best cornering properties.Electric boosting steering system can provide best power-assisted under various driving cycles; Minimizing is by the caused disturbance to steering swivel system of Uneven road; Improve the cornering properties of automobile; Handling maneuver power when alleviating the automobile low speed driving; Steering stability when improving galloping, and then the safety that improves automobile.
Electric boosting steering system assisted electric machine is the power element of electric boosting steering system, and the characteristic of assisted electric machine directly has influence on the complexity of EPS system control and the feel of chaufeur.The EPS system to the basic demand of assisted electric machine is: should have high reliability, big power, low noise and vibration, lower friction torque, smaller volume and weight; Can be at output torque under the stall; The favorable mechanical characteristic is arranged, and in the course of the work, torque fluctuation is little as far as possible; Rotor inertia should be as much as possible little; Should be able to the fast speed counter-rotating.
Present motor turning control system exists mechanism numerous and jumbled, and it is big to take up room, the shortcoming of low-response.
Summary of the invention
In order to overcome the shortcoming of prior art, the object of the present invention is to provide a kind of power-steering disc type servomotor of automotive self-adaptive direct driving device that is applicable to, nearly direct drive, it is simple to have a mechanism, and it is little to take up room, the advantage that speed of response is fast.
In order to achieve the above object, the technical scheme of the present invention's employing is:
A kind of power-steering disc type servomotor of automotive self-adaptive direct driving device that is applicable to; Comprise rack shaft 12; The left end of rack shaft 12 is successively through left intermediate rod 10; Left side tie rod arm 11 is connected with left steering wheel 14; The gear mesh of one end of the rack and pinion axle 13 on the rack shaft 12; The other end of gear wheel shaft 13 is successively through universal-joint 15; Steering gear 2 is connected with steering handwheel 1; One end of right intermediate rod 9 is connected with right steering wheel 7 through right steering trapezoid connection 8; Rack shaft 12 right-hand members are connected with the other end of right intermediate rod 9 through the first assist motor bindiny mechanism or the second assist motor bindiny mechanism, and the torque sensor of installing on the Steering gear 23 is connected with the disc machine 4 of the first assist motor bindiny mechanism or the second assist motor bindiny mechanism through electronic control unit;
The first assist motor bindiny mechanism comprises the connection structure of disc type electric machine and ball-screw, and an end of the ball-screw 6 in the connection structure of disc type electric machine and ball-screw is connected with right intermediate rod 9, and the other end is connected with rack shaft 12 right-hand members;
The second assist motor bindiny mechanism comprises the connection structure of disc type electric machine and ball-screw; One end of the ball-screw 6 in the connection structure of disc type electric machine and ball-screw is connected with an end of second liquid presses piston pole 34; Second liquid presses piston pole 34 cooperates with piston cylinder 29; The rod chamber of piston cylinder 29 is through the left chamber UNICOM of second hydraulic oil pipe 32 and hydraulic actuating cylinder 31; The rodless cavity of piston cylinder 29 is through the right chamber UNICOM of first hydraulic oil pipe 30 and hydraulic actuating cylinder 31; Hydraulic actuating cylinder 31 cooperates with first liquid presses piston pole 33, and first liquid presses piston pole 33 is connected with right intermediate rod 9;
The syndeton of disc type electric machine and ball-screw comprises ball-screw 6; Ball-screw 6 links to each other with ball-screw nut 5 by ball 25; Ball-screw nut 5 is glued together with the rotor 22 of disc type electric machine 4; Ball-screw nut 5 is connected with motor stator 23 with second bearing 27 by clutch shaft bearing 26; First motor housing 16 is connected with motor stator 23 respectively with second motor housing 19; Motor windings 21 is on motor stator 23; Left end cap 28 is connected with motor stator 23 with clutch shaft bearing 27; Right end cap 24 is connected with motor stator 23 with second bearing 26, and screw rod 18 is connected with second motor housing 19 with first motor housing 16.
Described disc type electric machine 4 adopts storage battery power supply.
The present invention has the following advantages:
1, little, in light weight, the compact conformation of disc type electric machine volume, efficient are high, are applied to automobile steering system, can the shared space of less steering swivel system, and weight reduces, and meets the requirement of automobile weight-saving, and efficient is high to be satisfied and turns to requirement of real-time control.
2, drive mechanism is simple, has saved drive mechanisms such as retarder, belt pulley, has been applied to nearly direct driving technologies, has further saved the space for car body, and speed of response is faster, uses more extensive in the motor turning field.
3, the original pump and the hydraulic valve of the replacement of motor and ball nut leading screw make the loop simpler, and drive configuration is more clear.
4, disc type electric machine provides power-assisted steering swivel system that best power-assisted can be provided under various driving cycles; Minimizing is by the caused disturbance to steering swivel system of Uneven road; Improve the cornering properties of automobile; Handling maneuver power when alleviating the automobile low speed driving; Steering stability when improving galloping, and then the safety that improves automobile.
5, this system energy-conserving and environment-protective more, only electrical motor just provides power-assisted when turning to, and has reduced consumption of fuel, and mass of system is lighter, more compact structure, noise are littler.
6, disc type electric machine is by storage battery power supply, therefore also power-assisted can be provided at engine off or when breaking down.
Description of drawings
Fig. 1 is the scheme drawing that the present invention adopts the first assist motor bindiny mechanism.
Fig. 2 is the scheme drawing that the present invention adopts the second assist motor bindiny mechanism.
Fig. 3 is the scheme drawing of the connection structure of disc type electric machine of the present invention and ball-screw.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is done detailed description.
With reference to Fig. 1; A kind of power-steering disc type servomotor of automotive self-adaptive direct driving device that is applicable to; Comprise rack shaft 12; The left end of rack shaft 12 is successively through left intermediate rod 10; Left side tie rod arm 11 is connected with left steering wheel 14; The gear mesh of one end of the rack and pinion axle 13 on the rack shaft 12; The other end of gear wheel shaft 13 is successively through universal-joint 15; Steering gear 2 is connected with steering handwheel 1; One end of right intermediate rod 9 is connected with right steering wheel 7 through right steering trapezoid connection 8; Rack shaft 12 right-hand members are connected with the other end of right intermediate rod 9 through the first assist motor bindiny mechanism, and the torque sensor of installing on the Steering gear 23 is connected with the disc type electric machine 4 of the first assist motor bindiny mechanism through electronic control unit;
The first assist motor bindiny mechanism comprises the connection structure of disc type electric machine and ball-screw, and an end of the ball-screw 6 in the connection structure of disc type electric machine and ball-screw is connected with right intermediate rod 9, and the other end is connected with rack shaft 12 right-hand members;
With reference to Fig. 2; A kind of power-steering disc type servomotor of automotive self-adaptive direct driving device that is applicable to; Comprise rack shaft 12; The left end of rack shaft 12 is successively through left intermediate rod 10; Left side tie rod arm 11 is connected with left steering wheel 14; The gear mesh of one end of the rack and pinion axle 13 on the rack shaft 12; The other end of gear wheel shaft 13 is successively through universal-joint 15; Steering gear 2 is connected with steering handwheel 1; One end of right intermediate rod 9 is connected with right steering wheel 7 through right steering trapezoid connection 8; Rack shaft 12 right-hand members are connected with the other end of right intermediate rod 9 through the second assist motor bindiny mechanism, and the torque sensor of installing on the Steering gear 23 is connected with the disc type electric machine 4 of the second assist motor bindiny mechanism through electronic control unit;
The second assist motor bindiny mechanism comprises the connection structure of disc type electric machine and ball-screw; One end of the ball-screw 6 in the connection structure of disc type electric machine and ball-screw is connected with an end of second liquid presses piston pole 34; Second liquid presses piston pole 34 cooperates with piston cylinder 29; The rod chamber of piston cylinder 29 is through the left chamber UNICOM of second hydraulic oil pipe 32 and hydraulic actuating cylinder 31; The rodless cavity of piston cylinder 29 is through the right chamber UNICOM of first hydraulic oil pipe 30 and hydraulic actuating cylinder 31; Hydraulic actuating cylinder 31 cooperates with first liquid presses piston pole 33, and first liquid presses piston pole 33 is connected with right intermediate rod 9;
When motor turning needs power-assisted; Electronic control unit is according to sensor signal and power steering curve; Calculate and turn to the power-assisted size that needs; Then control signal is transferred to disc type electric machine 4; Disc type electric machine 4 drives ball-screw nut 5 and rotates; Ball-screw 6 produces motion to the left or to the right; Thereby drive second liquid presses piston pole, 34 sway; Hydraulic oil flows to hydraulic actuating cylinder 31 through first hydraulic oil pipe 30 and second hydraulic oil pipe 32; First liquid presses piston pole 33 is sway under hydraulic oil drives; Drive tierod and steering trapezoidal arm and move, rotate thereby drive wheel flutter, this structure completion turns to more steady; Disc type electric machine 4 has replaced Hydraulic Pump and hydraulic valve with ball-screw 6; Make structure simpler, control steering swivel system, control convenient through the control motor.Disc type electric machine 4 and same Fig. 3 of being connected of ball-screw 6.
With reference to Fig. 3; The syndeton of disc type electric machine and ball-screw comprises ball-screw 6; Ball-screw 6 links to each other with ball-screw nut 5 by ball 25; Ball-screw nut 5 is glued together with the rotor 22 of disc type electric machine 4; Ball-screw nut 5 is connected with motor stator 23 with second bearing 27 by clutch shaft bearing 26; First motor housing 16 is connected with motor stator 23 respectively with second motor housing 19; Motor windings 21 is on motor stator 23; Left end cap 28 is connected with motor stator 23 with clutch shaft bearing 27; Right end cap 24 is connected with motor stator 23 with second bearing 26, and screw rod 18 is connected with second motor housing 19 with first motor housing 16 respectively with second nut 20 by first nut 17.
Ball-screw nut 5 is identical with rotor 22 rotating speeds; Ball-screw 6 feed speeds equal the product of ball-screw helical pitch and motor speed; Control ball-screw 6 feedings by the control motor speed; Ball-screw 6 feed speeds and rack shaft 12 move left and right speed are consistent; Assurance turns to steadily; Ball-screw nut 5 is glued together with rotor 22; Guarantee synchronization; Motor windings 21 is on motor stator 23; Under "on" position, produce magnetic field; Rotor 22 produces under the electromagnetic torque effect and rotatablely moves; Driving ball-screw nut 5 rotates together; Clutch shaft bearing 27 links to each other with ball-screw nut 5 with second bearing 26; The radial and axial play of clutch shaft bearing 27 and second bearing, 26 restriction ball-screw nuts 5; Reduce rotational resistance; First motor housing 16 is connected with motor stator 23 respectively with second motor housing 19; And be motor stator 23 axial location; Left end cap 28 is connected with motor stator 23 with clutch shaft bearing 27; And be the motor stator radial location; Right end cap 24 is connected with motor stator 23 with second bearing 26; And be the motor stator radial location; First nut 17 is connected with screw rod 18 with second nut 20; Motor housing is linked together; And be its location; Ball-screw nut 5 is connected with ball-screw 6 by ball 25, and is converted into rectilinear motion rotatablely moving.
Described disc type electric machine 4 adopts storage battery power supplys, also power-assisted can be provided at engine off or when breaking down.
Principle of work of the present invention is:
The present invention has adopted disc-type electric motor to provide power steering to alleviate operator's the hand-power that turns to; The operator is when rotating steering wheel 1 to the left or to the right; The first assist motor bindiny mechanism or the second assist motor bindiny mechanism offer rack shaft 12 and right drag link 9 motion power-assisteds to the left or to the right; Thereby left steering wheel 14 and right turn wheel 7 are rotated; Wherein steering wheel 1 drives steering column 2 rotations; Steering column 2 is passed to gear shaft 13 through universal joint 15 rotatablely moving; Mesh by wheel and rack axle 12 upper racks on the gear shaft 13; Be converted into the rectilinear motion of rack bar 12 rotatablely moving, the power-assisted that provides with the first assist motor bindiny mechanism or the second assist motor bindiny mechanism drives the deflecting roller rotation.
Claims (3)
1. one kind is applicable to the power-steering disc type servomotor of automotive self-adaptive direct driving device; Comprise rack shaft (12); The left end of rack shaft (12) is successively through left intermediate rod (10); Left side tie rod arm (11) is connected with left steering wheel (14); The gear mesh of one end of the rack and pinion axle (13) on the rack shaft (12); The other end of gear wheel shaft (13) is successively through universal-joint (15); Steering gear (2) is connected with steering handwheel (1); One end of right intermediate rod (9) is connected with right steering wheel (7) through right steering trapezoid connection (8); It is characterized in that: rack shaft (12) right-hand member is connected with the other end of right intermediate rod (9) through the first assist motor bindiny mechanism or the second assist motor bindiny mechanism, and Steering gear (2) is gone up the torque sensor of installing (3) and is connected with the disc type electric machine (4) of the first assist motor bindiny mechanism or the second assist motor bindiny mechanism through electronic control unit;
The first assist motor bindiny mechanism comprises the connection structure of disc type electric machine and ball-screw, and an end of the ball-screw (6) in the connection structure of disc type electric machine and ball-screw is connected with right intermediate rod (9), and the other end is connected with rack shaft (12) right-hand member;
The second assist motor bindiny mechanism comprises the syndeton of disc type electric machine and ball-screw; One end of the ball-screw (6) in the syndeton of disc type electric machine and ball-screw is connected with an end of second liquid presses piston pole (34); Second liquid presses piston pole (34) cooperates with piston cylinder (29); The rod chamber of piston cylinder (29) is by the left chamber UNICOM of second hydraulic oil pipe (32) and hydraulic cylinder (31); The rodless cavity of piston cylinder (29) is by the right chamber UNICOM of first hydraulic oil pipe (30) and hydraulic cylinder (31); Hydraulic cylinder (31) cooperates with first liquid presses piston pole (33), and first liquid presses piston pole (33) is connected with right drag link (9).
2. a kind of power-steering disc type servomotor of automotive self-adaptive direct driving device that is applicable to according to claim 1; It is characterized in that: the syndeton of disc type electric machine and ball-screw comprises ball-screw (6); Ball-screw (6) links to each other with ball-screw nut (5) by ball (25); Ball-screw nut (5) is glued together with the rotor (22) of disc type electric machine (4); Ball-screw nut (5) is connected with motor stator (23) with second bearing (27) by clutch shaft bearing (26); First motor housing (16) is connected with motor stator (23) respectively with second motor housing (19); Motor windings (21) is on motor stator (23); Left end cap (28) is connected with motor stator (23) with clutch shaft bearing (27); Right end cap (24) is connected with motor stator (23) with second bearing (26), and screw rod (18) is connected with second motor housing (19) with first motor housing (16).
3. a kind of power-steering disc type servomotor of automotive self-adaptive direct driving device that is applicable to according to claim 1 is characterized in that: described disc type electric machine (4) adopts storage battery power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110157734 CN102303641B (en) | 2011-06-14 | 2011-06-14 | Disc-type servomotor direct-driving device suitable for self-adaptable power-assisted steering of automobile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110157734 CN102303641B (en) | 2011-06-14 | 2011-06-14 | Disc-type servomotor direct-driving device suitable for self-adaptable power-assisted steering of automobile |
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| Publication Number | Publication Date |
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| CN102303641A true CN102303641A (en) | 2012-01-04 |
| CN102303641B CN102303641B (en) | 2013-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110157734 Expired - Fee Related CN102303641B (en) | 2011-06-14 | 2011-06-14 | Disc-type servomotor direct-driving device suitable for self-adaptable power-assisted steering of automobile |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102673637A (en) * | 2012-05-10 | 2012-09-19 | 清华大学 | Electric power-assisted steering system for commercial vehicle |
| CN103010392A (en) * | 2012-12-11 | 2013-04-03 | 西安交通大学 | Driving device of direct-driven electric tricycle |
| CN105313962A (en) * | 2014-07-30 | 2016-02-10 | 操纵技术Ip控股公司 | Wheel imbalance rejection module |
| CN106891987A (en) * | 2017-03-14 | 2017-06-27 | 辽宁工业大学 | Electric automobile electric power-assisted steering apparatus and control method |
| CN106976477A (en) * | 2017-03-27 | 2017-07-25 | 同济大学 | A kind of automobile steering system of achievable preferable Ackermann angle relation |
| CN107906193A (en) * | 2017-12-30 | 2018-04-13 | 黄继成 | A kind of plug and play transmission belt turns to gearbox |
| CN108001522A (en) * | 2017-10-24 | 2018-05-08 | 南京航空航天大学 | A kind of heavy goods vehicles R type electric power-assisted steering apparatus |
| CN108063519A (en) * | 2017-12-28 | 2018-05-22 | 广东东辉恒力电机有限公司 | Slotless electric machines and driving device |
| CN109563880A (en) * | 2016-08-08 | 2019-04-02 | 蒂森克虏伯普利斯坦股份公司 | The retaining ring of the swivel bearing of transfer for axial restraint motor vehicles |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102673637A (en) * | 2012-05-10 | 2012-09-19 | 清华大学 | Electric power-assisted steering system for commercial vehicle |
| CN103010392A (en) * | 2012-12-11 | 2013-04-03 | 西安交通大学 | Driving device of direct-driven electric tricycle |
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| CN105313962B (en) * | 2014-07-30 | 2021-07-27 | 操纵技术Ip控股公司 | Wheel imbalance suppression module |
| CN109563880A (en) * | 2016-08-08 | 2019-04-02 | 蒂森克虏伯普利斯坦股份公司 | The retaining ring of the swivel bearing of transfer for axial restraint motor vehicles |
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| CN106891987A (en) * | 2017-03-14 | 2017-06-27 | 辽宁工业大学 | Electric automobile electric power-assisted steering apparatus and control method |
| CN106976477A (en) * | 2017-03-27 | 2017-07-25 | 同济大学 | A kind of automobile steering system of achievable preferable Ackermann angle relation |
| CN108001522A (en) * | 2017-10-24 | 2018-05-08 | 南京航空航天大学 | A kind of heavy goods vehicles R type electric power-assisted steering apparatus |
| CN108063519A (en) * | 2017-12-28 | 2018-05-22 | 广东东辉恒力电机有限公司 | Slotless electric machines and driving device |
| CN108063519B (en) * | 2017-12-28 | 2024-04-02 | 山西东辉新能源汽车研究院有限公司 | Slotless motor and driving device |
| CN107906193A (en) * | 2017-12-30 | 2018-04-13 | 黄继成 | A kind of plug and play transmission belt turns to gearbox |
| CN107906193B (en) * | 2017-12-30 | 2023-08-22 | 黄继成 | Plug-and-play driving belt steering gearbox |
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Granted publication date: 20130710 Termination date: 20160614 |